[2859] in cryptography@c2.net mail archive
RE: Brute forcing half a Clipper key.
daemon@ATHENA.MIT.EDU (Trei, Peter)
Thu Jun 25 15:45:39 1998
From: "Trei, Peter" <ptrei@securitydynamics.com>
To: "'Adam Shostack'" <adam@homeport.org>
Cc: "'cryptography@c2.net'" <cryptography@c2.net>
Date: Thu, 25 Jun 1998 12:55:18 -0400
DOH! [Slaps self on forehead]
You're right, of course. I vaguely remembered
something about this, but not the details.
Peter
> -----Original Message-----
> From: Adam Shostack [SMTP:adam@homeport.org]
> Sent: Thursday, June 25, 1998 12:36 PM
> To: ptrei@securitydynamics.com
> Cc: colin@nyx.net; cryptography@c2.net
> Subject: Re: Brute forcing half a Clipper key.
>
> The half keys were (ostensibly) going to be stored as 2 80 bit values
> which needed to be xored together to get the key. So you didn't get
> to brute force a 40 bit key.
>
> Adam
>
